One problem related to manifold/header/muffler/tail pipe has been reported for the 2001 Saturn LS. The most recently reported issues are listed below.
Traveling at approximately 60 mph on interstate 271 in ohio during rush hour, the timing chain on my 2001 Saturn l200 failed causing engine shut down. I was able to coast to the side of the road and park the car. After having the vehicle towed and then moved to the Saturn dealership, the timing chain with the new oiling mechanism was installed and the engine head needed replaced due to bent valves.